Application of a cw tunable infrared spectrometer based on difference-frequency generation in AgGaS2 for self-broadening investigations of NO at 5 μm

H. D. Kronfeldt; G. Basar; B. Sumpf

doi:10.1364/JOSAB.13.001859

Application of a cw tunable infrared spectrometer based on difference-frequency generation in AgGaS₂ for self-broadening investigations of NO at 5 μm

H. D. Kronfeldt^*, G. Basar, B. Sumpf

^*Corresponding author for this work

Technical University of Berlin

Research output: Contribution to journal › Article › peer-review

21 Citations (Scopus)

Abstract

A cw tunable infrared spectrometer based on difference-frequency generation in a nonlinear crystal of AgGaS₂ was constructed. An output wave-number range of 1920-2020 cm^-1 could be covered by an AlGaAs index-guided single-mode diode laser and a ring dye laser (dye: DCM). With an IR power of ∼15 nW and an emission linewidth of 30 MHz the self-broadening of the Λ doublet ²Π_3/2R(25.5) of NO in the fundamental band was investigated. The self-broadening coefficient γ = (0.0543 ± 0.0008) cm^-1 atm^-1 is compared with γ values for lower J″. The spacing of the Λ doublet was determined to be (5.5 ± 0.1) × 10^-3 cm^-1 which is slightly smaller than that given in the HITRAN database.

Original language	English
Pages (from-to)	1859-1863
Number of pages	5
Journal	Journal of the Optical Society of America B: Optical Physics
Volume	13
Issue number	9
DOIs	https://doi.org/10.1364/JOSAB.13.001859
Publication status	Published - Sept 1996
Externally published	Yes

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title = "Application of a cw tunable infrared spectrometer based on difference-frequency generation in AgGaS2 for self-broadening investigations of NO at 5 μm",

abstract = "A cw tunable infrared spectrometer based on difference-frequency generation in a nonlinear crystal of AgGaS2 was constructed. An output wave-number range of 1920-2020 cm-1 could be covered by an AlGaAs index-guided single-mode diode laser and a ring dye laser (dye: DCM). With an IR power of ∼15 nW and an emission linewidth of 30 MHz the self-broadening of the Λ doublet 2Π3/2R(25.5) of NO in the fundamental band was investigated. The self-broadening coefficient γ = (0.0543 ± 0.0008) cm-1 atm-1 is compared with γ values for lower J″. The spacing of the Λ doublet was determined to be (5.5 ± 0.1) × 10-3 cm-1 which is slightly smaller than that given in the HITRAN database.",

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AU - Sumpf, B.

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N2 - A cw tunable infrared spectrometer based on difference-frequency generation in a nonlinear crystal of AgGaS2 was constructed. An output wave-number range of 1920-2020 cm-1 could be covered by an AlGaAs index-guided single-mode diode laser and a ring dye laser (dye: DCM). With an IR power of ∼15 nW and an emission linewidth of 30 MHz the self-broadening of the Λ doublet 2Π3/2R(25.5) of NO in the fundamental band was investigated. The self-broadening coefficient γ = (0.0543 ± 0.0008) cm-1 atm-1 is compared with γ values for lower J″. The spacing of the Λ doublet was determined to be (5.5 ± 0.1) × 10-3 cm-1 which is slightly smaller than that given in the HITRAN database.

AB - A cw tunable infrared spectrometer based on difference-frequency generation in a nonlinear crystal of AgGaS2 was constructed. An output wave-number range of 1920-2020 cm-1 could be covered by an AlGaAs index-guided single-mode diode laser and a ring dye laser (dye: DCM). With an IR power of ∼15 nW and an emission linewidth of 30 MHz the self-broadening of the Λ doublet 2Π3/2R(25.5) of NO in the fundamental band was investigated. The self-broadening coefficient γ = (0.0543 ± 0.0008) cm-1 atm-1 is compared with γ values for lower J″. The spacing of the Λ doublet was determined to be (5.5 ± 0.1) × 10-3 cm-1 which is slightly smaller than that given in the HITRAN database.

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Application of a cw tunable infrared spectrometer based on difference-frequency generation in AgGaS₂ for self-broadening investigations of NO at 5 μm

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